OpenAPI → MCP → AI agents

Turn OpenAPI specs into MCP tools instantly

Upload your OpenAPI specification and automatically generate MCP tools for AI agents like Claude, Cursor, and custom MCP clients.

Start FreeView Example
POST /mcp

Authorization: Bearer sk_live_xxx

tools/list

[
 {
   name: "get_orders",
   description: "GET /orders"
 }
]

APIs are not built for AI agents

Manual Tool Creation
Write schemas
Maintain tools
Keep APIs synchronized
Unused OpenAPI Specs
You already have OpenAPI specs but AI agents can't use them.
Complex MCP Setup
Building MCP servers and tools takes time.

apitrain automates everything

Upload OpenAPI
Bring your existing OpenAPI 3.x JSON in seconds.
Generate Tools
Endpoint metadata is converted into MCP-ready tool definitions automatically.
Use With AI
Connect tools to Claude, Cursor, and custom MCP clients.

How apitrain works

Step 1

Upload OpenAPI JSON

Step 2

apitrain extracts endpoints

Step 3

Tools generated automatically

Step 4

AI agents call tools via MCP

Example MCP Tool

OpenAPI

GET /orders/{id}

Generated Tool

{
 name: "get_order_by_id",

 inputSchema: {
   type:"object",
   properties:{
     id:{ type:"string" }
   }
 }
}

Features

Automatic Tool Generation
Built for reliable API-to-tool workflows.
Multiple APIs per account
Built for reliable API-to-tool workflows.
Secure execution
Built for reliable API-to-tool workflows.
High performance MCP server
Built for reliable API-to-tool workflows.

Architecture

User
 ↓
apitrain.cloud
 ↓
OpenAPI → MCP Tools
 ↓
mcp.apitrain.cloud
 ↓
User APIs

Built for developers

  • ✓OpenAPI 3.x
  • ✓MCP Compatible
  • ✓API Keys
  • ✓No SDK Required
  • ✓Multiple APIs

FAQ

Start generating MCP tools today

Connect OpenAPI to AI tooling with a production-ready MCP workflow.

Start Free